staminodes and incurved o: ^ dov/n into the short 



calyx-*-'-"-' +^- -t- is rrod-uci^:. ove the ovc :-- ;tf.ls 



lir.~—r- ' te or cune?-tely lines r ^:, ^repsi:. 



44. "^'ery d^, r.rr stenless plants • " ■'" 'hick suhfleshy root- 

 stock and v.rith the leeves fts of 3-6 rairs to 

 ? CTOv^th, dotted, vithout internodes between them; 

 flov-ers sessile or subsessile, staLiens conspicuous, 

 erect 34, K'ananthus 



Shrubby rl^nt " ' '^"' "--tinct intervals between the 

 ' le?if-r.eirs ; " c^duced into a brosd dup above the 



ovary; petals v;ith long stalks and smell obovate or 

 elliptic biases; st^^nens hidden under a dome 'of in- 

 arched staminodes end r.etals 41, ^iquetic; 



IT. 3. — In reference to the above ^'-ej , as it has been found 

 that more usu.al type of I^ey W'ould have involved the loss of c greet 

 c'.eel of valuable sr^pce, the above type has been adopted, al- 

 t'- -''-■'- it is not "- -'^ - ' r- or e?s- "-- use. Tq those --" - '- -ot 

 .-. c:'i.^--^torted •*:c t^ ' of. Key i - ^^ urre"^'^'' to t 



to use it t' ■ - t first "' . . - to 



the proup ■«■ or ^roiar -.-. Supposing ziie ;' iu questicu i^cc flat 



leaves, it v-iT]. h-''_on~ *:c ~vovr A. Then //ar to the coupled 



9nd numbered par ,. at nuber 1, it i that 



if the leaves, or soiiie o.;" zliol^, i^ro alterhete, the re.saer ^ust 

 refer to •♦•he courle^' paragr-rh- nu'-.'^er 2, as indicated by that 

 "^igure on the rig^'^t hand si "ext, under which two genera 



^re found ch.-^recterisefl (^^ydro. e:: and ^r3''ophytiam) , and fror:i the 

 ':;ontr'=sted characters there given the genus can be ascertained. 

 "ut i' ^ the leaves rre ell opposite ■'"e are directed to the couplet 

 nunb'-r 3, and again from that couplet to couplets 4 and 11 respec- 

 tively, end po on, until the genus is found by the chrrrctars thet 

 ■fit the plant, '^e number before e-ch generic ncme ir es the 



numberer' position of the genus in the sequence adopted. 

 IT, E. Brovm 



(To be continued.) 



LIES3I.3HYAlTTHEI<mi 



Gard. Chron. HI. 78: 450. 1925. 

 (^ontinup>r! fron r.-: r.^ -^"n.) 



CONOPHYTi: , . . ji. -^rovm 



Very small perennial, succulent, tufted plants, usually sten- 

 less, but a few species develor short stems v/itli age, witli the 

 '^rowths crowded into a clump. Hoots very short, ^ach grovrth con- 

 sists .of a small, fleshy body, obconical, globose, ovoid, oblong, 

 or sub-cvlindric in shape, formed of two o'^^posite leaves fused in- 

 to one bod^r, and convex, flp't, der^ressed, notched or two-lobed at 

 the toT^, v:itb a small orifice resembling a closed mouth at the 

 centre or between the lobes. Slower soliterj'-, grov/ing up fron the 

 interior of the growths through the central orifice, G^iyx Y;ith 

 a distinct elongated, slender, membraneous tube above the overy, 

 f our-tosix-lobed rt the tor, included in or psrtly or entirel:'- 

 exserted from the orifice. Corolla with a distinct slender or 

 funnel-shaped tube as long as or longer than the celyA-tube, and 



